summaryrefslogtreecommitdiff
path: root/app/jni/jbcrypto.cpp
diff options
context:
space:
mode:
authorParménides GV <parmegv@sdf.org>2014-04-09 16:03:55 +0200
committerParménides GV <parmegv@sdf.org>2014-04-09 16:07:34 +0200
commit1684c8f398922065a97e7da4dac4ac6a33cc5218 (patch)
tree76a4b11ae0d7b217c088f3c2b8fc7e69a7b8ae0d /app/jni/jbcrypto.cpp
parentb9a2b085a8f508cd09e2639c70be845c992c4a3e (diff)
Back to the standard "app" module.
This return to "app" instead of "bitmask_android" is due to this reading: https://developer.android.com/sdk/installing/studio-build.html#projectStructure I'll have to tweak the final apk name in build.gradle.
Diffstat (limited to 'app/jni/jbcrypto.cpp')
-rw-r--r--app/jni/jbcrypto.cpp90
1 files changed, 90 insertions, 0 deletions
diff --git a/app/jni/jbcrypto.cpp b/app/jni/jbcrypto.cpp
new file mode 100644
index 00000000..1c3e3ca9
--- /dev/null
+++ b/app/jni/jbcrypto.cpp
@@ -0,0 +1,90 @@
+//
+// JBCyrpto.cpp
+// xcopenvpn
+//
+// Created by Arne Schwabe on 12.07.12.
+// Copyright (c) 2012 Universität Paderborn. All rights reserved.
+//
+
+#include <jni.h>
+
+#include <openssl/ssl.h>
+#include <openssl/rsa.h>
+#include <openssl/objects.h>
+#include <openssl/md5.h>
+#include <android/log.h>
+#include <openssl/err.h>
+
+
+extern "C" {
+jbyteArray Java_se_leap_openvpn_OpenVpnManagementThread_rsasign(JNIEnv* env, jclass, jbyteArray from, jint pkeyRef);
+}
+
+int jniThrowException(JNIEnv* env, const char* className, const char* msg) {
+
+ jclass exceptionClass = env->FindClass(className);
+
+ if (exceptionClass == NULL) {
+ __android_log_print(ANDROID_LOG_DEBUG,"openvpn","Unable to find exception class %s", className);
+ /* ClassNotFoundException now pending */
+ return -1;
+ }
+
+ if (env->ThrowNew( exceptionClass, msg) != JNI_OK) {
+ __android_log_print(ANDROID_LOG_DEBUG,"openvpn","Failed throwing '%s' '%s'", className, msg);
+ /* an exception, most likely OOM, will now be pending */
+ return -1;
+ }
+
+ env->DeleteLocalRef(exceptionClass);
+ return 0;
+}
+
+
+jbyteArray Java_se_leap_openvpn_OpenVpnManagementThread_rsasign(JNIEnv* env, jclass, jbyteArray from, jint pkeyRef) {
+
+ // EVP_MD_CTX* ctx = reinterpret_cast<EVP_MD_CTX*>(ctxRef);
+ EVP_PKEY* pkey = reinterpret_cast<EVP_PKEY*>(pkeyRef);
+
+
+ if (pkey == NULL || from == NULL) {
+ jniThrowException(env, "java/lang/NullPointerException", "EVP_KEY is null");
+ return NULL;
+ }
+
+ jbyte* data = env-> GetByteArrayElements (from, NULL);
+ int datalen = env-> GetArrayLength(from);
+
+ if(data==NULL )
+ jniThrowException(env, "java/lang/NullPointerException", "data is null");
+
+ unsigned int siglen;
+ unsigned char* sigret = (unsigned char*)malloc(RSA_size(pkey->pkey.rsa));
+
+
+ //int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
+ // unsigned char *sigret, unsigned int *siglen, RSA *rsa);
+
+ // adapted from s3_clnt.c
+ if (RSA_sign(NID_md5_sha1, (unsigned char*) data, datalen,
+ sigret, &siglen, pkey->pkey.rsa) <= 0 )
+ {
+
+ jniThrowException(env, "java/security/InvalidKeyException", "rsa_sign went wrong, see logcat");
+
+ ERR_print_errors_fp(stderr);
+ return NULL;
+
+
+ }
+
+
+ jbyteArray jb;
+
+ jb =env->NewByteArray(siglen);
+
+ env->SetByteArrayRegion(jb, 0, siglen, (jbyte *) sigret);
+ free(sigret);
+ return jb;
+
+}